Fairchild (onsemi)

UC3845D  

Power Supply Controllers, Monitors

UC3845D Description

The UC3845D is a high-performance switching controller designed for a wide range of power supply applications. Manufactured by Fairchild Semiconductor (now part of onsemi), this device is a key component in the category of Power Supply Controllers and Monitors. The UC3845D is housed in a tube package and is designed for surface mount mounting, making it suitable for compact and efficient power supply designs. Despite being marked as obsolete, the UC3845D remains a reliable choice for engineers due to its robust performance and compliance with the latest RoHS3 standards.

UC3845D Features

The UC3845D offers several unique features that set it apart from similar models in the market. Operating within a temperature range of 0°C to 70°C (TA), this controller is designed to maintain high performance across a broad spectrum of environmental conditions. Its ECCN classification as EAR99 and HTSUS code 8542.39.0001 ensure compliance with international trade regulations, facilitating seamless procurement and integration into various projects.

One of the standout features of the UC3845D is its ability to provide precise control over switching frequencies, which is crucial for optimizing power efficiency and minimizing electromagnetic interference (EMI). This controller also includes built-in protection mechanisms, such as overcurrent and overvoltage protection, which enhance the reliability and longevity of power supply systems.

UC3845D Applications

The UC3845D is ideal for a variety of applications where high efficiency and reliability are paramount. Its compact size and surface mount design make it particularly suitable for use in space-constrained environments, such as in consumer electronics, telecommunications equipment, and industrial control systems. The controller's ability to manage switching frequencies effectively makes it a preferred choice for applications requiring high power density and low EMI, such as in power adapters, LED drivers, and uninterruptible power supplies (UPS).

Conclusion of UC3845D

In conclusion, the UC3845D is a versatile and reliable switching controller that offers significant advantages in terms of performance, efficiency, and compliance. Despite its obsolete status, the UC3845D remains a valuable component for engineers looking to design robust and efficient power supply systems. Its unique features, such as precise frequency control and built-in protection mechanisms, make it a standout choice in the market. Whether used in consumer electronics, industrial applications, or telecommunications, the UC3845D ensures optimal performance and reliability, making it a worthy investment for any project requiring high-quality power supply control.

UC3845D Documents

Download datasheets and manufacturer documentation for UC3845D

Datasheets :

UC2844 Datasheet